Presented by Roman Schindlauer

1. Tableau &
Dato Predictive
Services
Machine Learning in Tableau with Python

2. 2
Hello my name is..
Roman Schindlauer
Senior Product Manager, Dato

3. 3
Hello my name is..
Bora Beran
Staff Product Manager, Tableau

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Agenda
• Overview
• Demos:
- Clustering
- Sentiment Analysis
- Lead Scoring
• Best Practices

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Dato & Tableau
• The power of Python in Tableau dashboards
• Tableau 8.1: R
• Tableau 10: Python
• Scenarios:
- Run complex models on user interaction data (churn prediction, lead
scoring, sentiment analysis, risk analysis)
- Process workbook data through an expressive programming
language
- Share external functions and models

6. Clustering with scikit-learn

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Dato Predictive Services
• Machine Learning in production
Load
Balancer
Application
Python code
Model queries
Model Server
Model Server
Metrics Logs
Cache
Python execution
environment
Model server
Management
models, ops

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Predictive Service
Tableau Integration
• Execute code in a PS
Tableau
SCRIPT(
...
)
Python execution environment
ML modelML modelML model

9. Sentiment Analysis with GraphLab Create

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PS as a Model Server
• Persist code in the server, call like a function
• Discover, share and re-use
• Update without affecting clients
Predictive Service
Tableau
SCRIPT(
...
)
Python execution environment
ML modelML modelML model

11. Deploying a trained model

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Discovering deployed models
• Workbook Dato Model Catalog:
- Uses a WDC that talks to a PS
- Lists deployed models
- Ideally, model author has added metadata to the service
- Simplifies the SCRIPT authoring

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Service Management & Monitoring
• Connect:
ps = gl.deploy.predictive_service.load(“s3://…”)
• Status:
ps.get_status()
• Scale the service:
ps.add_nodes(1)
ps.set_scale_factor(4)
• Get metrics:
ps.get_metrics(name="test", start_time=“6h”)
Need path and access
to state file!

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Summary
• ML integration
- Execute any Python code
- Call deployed models (Discover through WDC-based catalog)
- Data type compatibility
• Efficiency
- Define correct table calculations
- Scale the predictive service
- Monitor PS health
• Security
- Querying: API key is auto-generated, can be changed
- Administration: PS admins need access to state path
- SSL is supported

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Further sources
• http://www.tableau.com/support/desktop
• https://dato.com/learn/
- Notebook gallery
- User guide
- API reference
• Dato Webinars

16. ● 2 days with 60 talks and hands-on tutorials
● Tools, techniques, latest research & best practices
● Speakers from Pinterest, Pandora, Kaggle, Google, UW,
Quora, Salesforce, Uber, Tableau, Stanford, CMU and more
Data Science Summit
Register Now
http://bit.ly/DSS-SF-2016

17. Questions?

18. Thank you for joining us!